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• scrollTop issue on constant moving div

  - by joe

  I have a FLASH object that I mouse over which in turn calls the following function to scroll a div. It works but due to the constant high speed scrolling it would throw up NULLS. This in turn caused IE to open a new page through my FLASH ActionScript 2.0 I found that by creating the SC variable and throwing in the condition "if it exists" keeps FLASH from causing IE to open a new page. However, it still creates an error behind the scenes of "Object Required". Although my application works I do not want load up memory with errors. Any thoughts? var SC; function pP(PT){ SC=document.getElementById('P'+PT).offsetTop; if(SC){document.getElementById('CBOX').scrollTop=SC;} }

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• WebBrowserDocumentCompletedEventArgs Not Reached inside While Loop

  - by user3715962

  I am trying to use the WebBrowserDocumentCompletedEventHandler inside of a while loop but when the code executes the WebBrowserDocumentCompletedEventArgs is never reached. Can somebody tell me what I am doing wrong? int year = 1900; int currentYear = 2014; private void button1_Click(object sender, EventArgs e) { while (year < currentYear) { WebBrowser wb = new WebBrowser(); wb.Navigate("http://myurl.com/list/" + year.ToString()); year++; wb.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(wb_DocumentCompleted); } } void wb_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { //Code is not reaching here MessageBox.Show("Test"); }

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• Java deserialization speed

  - by celicni

  I am writing a Java application that among other things needs to read a dictionary text file (each line is one word) and store it in a HashSet. Each time I start the application this same file is being read all over again (6 Megabytes unicode file). That seemed expensive, so I decided to serialize resulting HashSet and store it to a binary file. I expected my application to run faster after this. Instead it got slower: from ~2,5 seconds before to ~5 seconds after serialization. Is this expected result? I thought that in similar cases serialization should increase speed.

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• can I get .class from generic type argument?

  - by Mike S

  I have the following class: public abstract class MyClass<T extends Object> { protected T createNewFromData(Reader reader){ GSON.fromJSON(reader,T.class); // T.class isn't allowed :( } } How do I pass a Class<T instance into there? Is there some wierd and wacky work around? Is there a way to get a Class<T reference other than from a pre-instantiated Object of type T? It won't let me do this either: T t = new T(); Class<T> klass = t.class; ANSWER BELOW Thanks to the accepted answer, here is the solution: Type type = new TypeToken<T>(){}.getType(); return gson.fromJson(reader, type);

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• Drop down menu like the default iPad application menus

  - by Ryan French

  Hi Everyone, I'm currently working on my first iOS application to run on the iPad, and I've come across a problem. I have been asked to implement menu's similar to the ones in the default applications such as when you click on the "Calendars" button in the top left of the calendars app. Only issue is, I cant seem to find a standard UI object that looks like these, with the arrow connecting the menu to the button etc. Is this a standard UI component that I should be able to use, or will I have to imitate them by creating a custom object? Thanks for any help.

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• Is it possible to get the current request that is being served by node.js?

  - by user420504

  I am using express.js. I have a need to be able to log certain request data whenever someone tries to log a message. For this I would like to create a helper method like so function log_message(level, message){ winston.log(level, req.path + "" + message); } I would then use the method like so. exports.index = function(req, res){ log_message("info", "I'm here"); } Note that I am not passing the req object to the log_message function. I want that to be transparently done so that the log_message API user does not need to be aware of the common data that is being logged. Is there a way to achieve this with express.js/node.js. Is the request object available from a global variable of some sort?

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• If I can't use datacontext in a static

  - by Richard77

  Hello, I've got this public static class MyClassHelper { DataContex db = new DataContext(); public static Type MyMethod() { //Do Something with db // such as db.myTable } } I'm getting the following error: "An object reference is required for the non-static field, method or property..." Is there anyway to get around this? How about this. I've an object that contains only integers, which is fine for all the internal functionings as it allows me to link tables. But occasionaly, I need to display some information to the user. That's why, I'd like to create a static method so it would read the integer, look up in the DB, and display a name instead of a number. I want it to be a static method so that I can use it in my View template. Thanks for helping

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• Prototype setStyle not working in IE6.

  - by Smickie

  Hi, I'm using prototype and setStyle in IE6 is just messing everything up. It's throwing a big error. I've Googled it but cant find a solution. I've identified the line in prototype with the IE script debugger, it's the final else block: setStyle: function(element, styles) { element = $(element); var elementStyle = element.style, match; if (Object.isString(styles)) { element.style.cssText += ';' + styles; return styles.include('opacity') ? element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element; } for (var property in styles) if (property == 'opacity') element.setOpacity(styles[property]); else elementStyle[(property == 'float' || property == 'cssFloat') ? (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') : property] = styles[property]; return element; }, Anyone had this problem? P.S. normally I would use jQuery however this is someone else code I've had to update.

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• PHP class declaration

  - by Ris90

  Is there any way to set explicit type to object field in php? Something like this class House{ private Roof $roof }

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• How can I convert my Stream (image data) back into a file

  - by James Hay

  I have a WCF restful service that I'm trying to upload an image to. I have a very basic metod that accepts a stream as it's only parameter and is defined in the contract as: [OperationContract] [WebInvoke(UriTemplate = "ReviewImage", BodyStyle = WebMessageBodyStyle.Bare, Method = "POST")] ReviewImage UploadImage(Stream data); I'm actually consuming this service from flash (which is fairly inconsequntial) which selects a file from the file system and uploads it through the service url. It all works seems to work, adding a breakpoint to the UploadImage method breaks as expected. If I wanted to save this file back to disk, is it just a case of reading this Stream object into a FileStream object that creates the file somewhere? A bit like the this? When i do actually do this the file can not be opened as an image. I'm sure i'm missing a key piece of knowledge here. Does my stream actually contain just the image bytes or does it contain more than that?

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• Error when changing or resetting FBProfilePictureView profileId

  - by Jeff Schwartz

  I have programmatically added an FBProfilePictureView object to a view. When initially logging in, the user's profile picture displays as expected when setting the profileId of the object within the FBLoginViewDelegate method loginViewFetchedUserInfo:user:. However, when logging off the following line of code produces an error: profilePicture.profileId = nil; The error thrown is: [__NSCFNumber isEqualToString:]: unrecognized selector sent to instance Note: This was only an issue after I incrementally upgraded the iOS SDK from 3.5 to 3.8. If anyone has encountered this issue, please let me know. Thanks!

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• Embedded YouTube video slows down page load

  - by Tom S

  Hi, total newbie here - trying to figure out how to make a page load faster with 1 embedded YouTube video on it - a very modest page takes an extra 5 seconds to completely load with the YouTube player showing up. I'd either like the page to load first or to only load the video when user clicks on it - don't know how to do that.. Here is the YouTube video embed code: <object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/kfZIIKVfJ1w&hl=en_US&fs=1&rel=0&hd=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/kfZIIKVfJ1w&hl=en_US&fs=1&rel=0&hd=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object> Thanks for your help!

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• When open-sourcing a live Rails app, is it dangerous to leave the session key secret in source contr

  - by rspeicher

  I've got a Rails app that's been running live for some time, and I'm planning to open source it in the near future. I'm wondering how dangerous it is to leave the session key store secret in source control while the app is live. If it's dangerous, how do people usually handle this problem? I'd guess that it's easiest to just move the string to a text file that's ignored by the SCM, and read it in later. Just for clarity, I'm talking about this: # Your secret key for verifying cookie session data integrity. # If you change this key, all old sessions will become invalid! # Make sure the secret is at least 30 characters and all random, # no regular words or you'll be exposed to dictionary attacks. ActionController::Base.session = { :key => '_application_session', :secret => '(long, unique string)' } And while we're on the subject, is there anything else in a default Rails app that should be protected when open sourcing a live app?

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• How can i do something like IList<T>.Contains(OtherObjectType) ?

  - by Noctris

  Hi, I have the following classes: Client ClientCacheMedia ( contains Client, Media and some other parameters so it is the link between the media and the client) Media where client contains an IList. Now what i would like to do, is have a way to check if this ilist contains a certain media so : Client.ClientCacheMedia.Contains(MyMedia) is there any way to let the IList accept media as an object to match ? ( i can easily override the Equals Property on ClientCacheMedia to check if the media passed is the one that the ClientCacheMedia.Media contains, it's just the Ilist that will not accept any other object on the Contains Method.

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• [javascript]Where are all funcitons in IE?

  - by user339865

  If i want to take all functions and variables declared in my program in firefox i just iterate 'window' object. For example if i have var a=function() {}; i can use a(); or window.a(); in firefox, but not in IE. I have function iterating window object and writing all function names declared in program like that: for (smthng in window) { document.write(smthng); } works in FF, in IE there are some stuff but nothing i declare before. Any ideas?

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• As2 loading swf instance

  - by user1748474

  I have a .swf which loads an external .swf: this.createEmptyMovieClip("container_mc", this.getNextHighestDepth()); var my_listener:Object = new Object(); my_listener.onLoadComplete = function(target_mc:MovieClip) { target_mc._x = 50; target_mc._y = 50; addChild(my_loader); var blocker = my_loader.content.test blocker._visible = false; } my_listener.onLoadProgress = function(target_mc:MovieClip) { trace(target_mc.getBytesLoaded() + " out of " + target_mc.getBytesTotal()); } var my_loader:MovieClipLoader = new MovieClipLoader(); my_loader.addListener(my_listener); my_loader.loadClip("child_as2.swf", container_mc); I want to acces the external swf and make the movieclip with instance name test visible = false; but it won't work. I have tried a lot of codes and right now it throws me this error: Scene=Escena 1, layer=Capa 1, frame=1, Line 9 There is no property with the name 'content'. Any idea? If you have a better code i will thank you so much.

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• where clause in linq query

  - by masoud

  in the below code "transmittalno.TransID" always has value but "doctranstocon.Transid" sometimes has value and sometimes does not, so when "doctranstocon.Transid" has value I have no problem but when there is not any value, when compare in the where clause like :"transmittalno.TransID == doctranstocon.Transid". It returns error" Object reference not set to an instance of an object." TranstoCons = from doctranstocon in _DocTranstoCons where ( transmittalno.TransID == doctranstocon.Transid ) select doctranstocon.tblTranstoCon I like TranstoCons returns null when there is not any value for " doctranstocon.Transid " How I can handle this error in the below linq query: var query = from transmittalno in _Transmittals Select new TransmittaltoConPresentationModel { TransID = transmittalno.TransID, Transmittal = transmittalno.TRANSMITTAL, TranstoCons = from doctranstocon in _DocTranstoCons where ( transmittalno.TransID == doctranstocon.Transid ) select doctranstocon.tblTranstoCon };

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• Can I load lots of data only once and use it on each request?

  - by eikes

  Is there a way to load a big data object into the memory, which usually has to be loaded at each request, only once? In Java you can instantiate an object in a servlet when this servlet is loaded, but once it's there you can use it in any request. Example is below. Can this be done in PHP? public class SampleServlet extends HttpServlet { private static HugeGraphObject hgo; public void init() { hgo = HugeGraphObjectFactory.get(); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String param = request.getParameter("q"); response.getWriter().write(hgo.getSomeThing(param)); } }

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• Changing cursor for textfield() mouse over

  - by Tom

  Can I change mouse cursor for textfield to appear as a clickable object?

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• Dynamic memory allocation with default values

  - by viswanathan

  class A { private: int m_nValue; public: A() { m_nValue = 0; } A(int nValue) { m_nValue = nValue); ~A() {} } Now in main if i call A a(2);// 2 will be assigned for m_nValue of object A. Now how do we do this if i want to define an array of objects. Also how do we do this if i dynamically create objects using operator new like A *pA; pA = new A[5];// while creating the object i want the parameterised constructor to be //called I hope the question is clear. Do let me know if more explanation is needed

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• [javascript]Where are all functions in IE?

  - by user339865

  If i want to take all functions and variables declared in my program in firefox i just iterate 'window' object. For example if i have var a=function() {}; i can use a(); or window.a(); in firefox, but not in IE. I have function iterating window object and writing all function names declared in program like that: for (smthng in window) { document.write(smthng); } works in FF, in IE there are some stuff but nothing i declare before. Any ideas?

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• Is this a php memory leak?

  - by mseifert

  I have memory_get_usage() in the footer of my page and with each refresh of the page, I watch it increase by about 100k each time. My page load creates many objects and destroys them when done . My parent objects each have __destruct() which uses unset() with all child objects. Child objects with a reference back to the parent, have __destruct() to unset() these references. Inserting memory_get_usage() before and after processing different parts of my page only tells me how much of the total usage was added due to that part of the script. How do I go about determining what memory is lost and not recycled for garbage collection after the page finishes loading? I have one global $_SESSION var containing objects storing user info, but have verified using strlen(serialize($object)) that this object is not growing in size. I presume that what I am seeing is a memory leak and that php garbage collection should be in effect after the script ends. Any ideas how to debug this?

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• Jquery .data() : possible to increment (++ or --)?

  - by Haroldo

  Whats the best way to increment a value in a jquery .data() object?

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• 1:M relationship in Hibernate and cascading operations

  - by EugeneP

  Table SUBCOURSE references COURSE COURSE(id, name) SUBCOURSE(id, course_id, name) So, 1:M. Hibernate generates for Course: @OneToMany(fetch = FetchType.LAZY, mappedBy = "course", cascade = CascadeType.ALL) public Set getSubCourses() { return this.subCourses; } for Subcourse it generates @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "course_id", nullable = false) public Course getCourse() { return this.course; } Now the problem is that cascading does not work as expected. I want to create a collection of SubCourse objects (Set), fill it and then bind it to setSubCourses() of Course object. Though, having ManyToOne thing in a Subcourses table, I need to manually setCourse() before adding to collection on each object. If I do not do so, an exception is raised. What can you recommend me?

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• Access to all threads from QApplication

  - by Sasun Hambardzumyan

  I there a way to get all running threads in qt application from QApplication object?

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